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A New Species of Anthurium (Araceae) from Chiapas, Mexico Miguel Angel Perez- Farr era Escuela de Biologia, Universidad tie Ciencias y Artes del Estado de Chiapas, A.P. 782, Tuxtla Gutierrez, Chiapas, 29000 Mexico Thomas B. Croat Missouri Botanical Garden, P.O. Box 299, St. Louis, Missouri 63166-0299, U.S.A. ABSTRACT. Anthurium faustomirandae sp. nov. is Rupicolous plant; stems short, light brown, gen¬ described and illustrated from Chiapas, Mexico. It erally 18—23 cm long; sap pale yellow to light is similar to A. titanium Standley & Steyermark but green; intemodes short, 7.6—8.7 cm diam., leaf differs from that species in having persistent intact scars 4—7 cm wide. Roots ± thick, 5.5-6.8 mm cataphylls, thicker pminose leaf blades with an diam., pale gray-brown, descending; cataphylls per¬ acute rather than acuminate apex, and a shorter, sistent, 14—27 cm long, moderately coriaceous stouter inflorescence with a much broader spathe fresh, papyraceous on drying, pale olive-green anti more stipitate spadix. Iresh, drying medium to light yellow-brown, acute Rf.SUMEN. Anthurium faustomirandae sp. nov. de at apex, persistent intact at apex but sometimes Chiapas es descrita e ilustrada. Presenta afinidad splitting as red-brown fibers at base. Leaves ± pen¬ con A. titanium Standley & Steyermark de Chiapas, dent from erect-spreading petioles; petioles subter- pero difiere de esta especie en la catafila intacta ete, obtusely flattened adaxially, sometimes weakly persistente, lamina pruinosa con apiee acuminado, D-shaped, medium green, semiglossy, sometimes inflorescencia con una espata mucha mas ancha y yellowish to light cream short-lineate throughout, espadice m<fs estipitado. 82-109 cm long, 11.4—12.8 mm diam., 1.6 cm Key words: Anthurium, Araceae, Mexico. diam. midway; geniculum 4.5—6.6 cm long, to 2 cm diam. at apex, ± D-shaped; blades deeply cordate, During a trip to San Fernando, Chiapas, Mexico, ovate to broadly ovate or nearly rounded, 73—89 for a monitoring project of cycad populations, we (—130) cm long, 48-62(—135) cm wide, ea. 1.4—1.5 collected an Anthurium with a large leaf ver)' sim¬ times longer than wide, broadest at middle or just ilar in size to that of A. titanium. The new collection below, moderately coriaceous, epunctate, semiglos¬ was distinct from that species, especially by its sy, dark green above, moderately paler and prui¬ short inflorescences, intact cataphylls, and pruinose nose below, gradually acuminate at apex (some¬ blades. The new species has been confused with A. times apiculate with acumen 1—2 mm long); titanium, a species endemic to a small area of margins markedly undulate; anterior lobe 51—65.5 southeastern Chiapas in Mexico and adjacent west¬ cm long with margins broadly rounded; posterior ern Guatemala in the Department of San Marcos at lobes 18—32 cm long; sinus spathulate, acute to elevations of 900 to 1800 m. rounded at apex; midrib convex and slightly paler above, convex and slightly paler, sometimes more Anthurium faustomirandae Perez-Farrera & acute below; basal veins 6—9 pairs, the first and Croat, sp. nov. TYPE: Mexico. Chiapas: Mon¬ often second free to base, the 3rd—4th and higher tanas del Norte, 2 km N of Colonia Cuactemoc, veins coalesced 4.5—7.5 cm, raised above and be¬ Mpio. de San Fernando, 850 m, 16 Apr. 1995, low; posterior ribs conspicuously upturned along Pdrez-Farr era 263 (holotype, CHIP; isotype, margin, naked for 2.5—6 cm; primary lateral veins MO). 3-4 per side, departing midrib at 40°—45° angle, ± straight to collective vein; interprimary veins usu¬ Planta rupestris; caudex ad 18-23 cm longus, 7.6—8.7 cm diam.; petiolus 82—109 cm longus; lamina ovata, cor- ally not apparent except near apex; lesser veins dis¬ iacea, basi cordata, 73—89 cm longa, 48^j2 cm lata. In- tinct, weakly raised below; collective veins arising florescentia petiolis breviora; pedunculus 9.2—24 cm lon¬ from the first basal vein on smaller blades or from gus, 5.3—13.2 mm diam., erectus; spatha coriacea, one of the primary lateral veins on the larger oblongo-lanceolata, 14—29 cm longa, 4.6-10.6 cm lata, spadice viridi, 12—17 cm longa, 1.4—2 cm diam. Baccae blades, weakly sunken above, raised below, 8-10 virides. mm from margin, loop-connecting to primary lateral Novon 11: 88-91. 2001. Volume 11, Number 1 Perez-Farrera & Croat 89 2001 Anthurium faustomirandae from Mexico Figure 1. Anthurium faustomirandae Perez-Farrera & Croat. —Top left. Leaf blades in face view (Perez-Farrera 263). —Top right. Stem showing cataphylls (Selby 1996-0174). —Bottom left. Inflorescence showing erect spathe (Selby 1996-0174). —Bottom right. Infructescence showing immature berries (Perez-Farrera 263). 90 Novon figure 2. Map of Chiapas State, Mexico, showing distribution. veins. Inflorescence erect-spreading, much shorter to light yellow, ovate-ellipsoid, 2 cm long, 0.7 cm than petioles; peduncle 9.2—24 cm long, 5.3—13.2 wide (Fig. 1). mm diam., terete; spathe hooding spadix, coria¬ ceous, light green within, medium green outside, broadly lanceolate, 14.2—29 cm long, 4.6—10.6 cm Diagnostic Kky wide, broadest just above base, long-acuminate, cirrhose and inrolled at apex, inserted at 40° angle la. Blade not pruinose, subcoriaceous; the surface on peduncle; shortly stipitate for 3—6 mm long in quilted (raised between the primary lateral veins); cataphylls weathering to coarse fibers; in¬ front, 1-2 mm long in back; spadix spindle-shaped, florescence usually moderately slender with the olive- to light green, 12—17 cm long, 1.4—2 cm peduncle usually longer lhan spadix; spathe 1.8— diam. at base, 0.7-1.3 cm diam. at apex; flowers 4- 3.2 cm wide; spadix stipitate 4.5—7 mm long in lobed, 2-3 mm long, 2-3.5 mm wide, margins sin¬ back .A. titanium uate to weakly sigmoid. Infructescence arching-pen- lb. Blade often pruinose, moderately coriaceous; the dent; spathe usually persisting; spadix green, to 20 surface scarcely or not at all quilted; cataphylls persisting ± intact; inflorescences usually mod¬ cm long, to 3 cm diam.; berries olive-green, ob- erately stout with peduncle usually shorter than ovoid to ellipsoid, rostrate at apex, mesocarp pulpy, spadix; spathe 4.6—10.6 cm wide; spadix stipi¬ light yellow-cream; seeds 2 per berry, dark cream tate 1—2 mm long in back .... A. faustomirandae Volume 11, Number 1 Perez-Farrera & Croat 91 2001 Anthurium faustomirandae from Mexico Habitat nium (Croat, 1983). Miranda’s original live collec¬ tion of this species is still in cultivation in the Jar- Anthurium faustomirandae is apparently endem¬ dfn Botanico “Faustino Miranda” at the Instituto ic to the state of Chiapas in Mexico, occurring at de Historia Natural in Chiapas. The new species is 850—1000 m elevation. It is known for certain only by far the largest Anthurium in Mexico, attaining a from a small area of northeastern Chiapas in an size even larger than that of A. titanium. Anthurium area of “Bosque Tropical Perennifolio” in the faustomirandae is easily the largest species in Mex¬ mountains between Yajalon and Tila, where it oc¬ ico and Middle America. curs on karst rocks (Fig. 2), and near San Fernando The species is named in honor of the late Span¬ (Ocozocoautla, Cintalapa), near the northern limits ish botanist f austino Miranda (1905-1964) who of the Centra] Depression of Chiapas in areas of lived and worked in Mexico. He was the first to “Bosque Tropical Subcaducifolio” (Rzedowski, collect the species and to bring it into cultivation. 1978). In the latter area it occurs with an overstory It is a very desirable cultivar and has been in cul¬ of Belotia mexicana (DC.) Schumann, Ficus sp., tivation for many years by a number of people in Manilkara chicle (Pittier) Pennington, M. zapota the Miami, Florida, area. (L.) P. Royen, Sideroxylon sp., Bursera simaruba (L.) Sargent, Ficus hemsleyana Standley, Playmis- Paratypes. MEXICO. Chiapas: 8 km W of Petalcin- cium dimorphandrum D. Smith, a shrubby layer go, Tila. Perez-Farrera 1655A (CHIP); 21 km N of Tuxtla dominated by Astrocaryum mexicanum Liebmann, Gutierrez, Mirador La Atalaya, Canon del Sumidero, Perez-Farrera 1706G (CHIP); El Encajonado, Selva El Chamaedorea ernesti-angusti H. Wendland, C. Oeote. Cintalapa, Perez-Farrera 1H67A (CHIP); 15 km N glaucifolia H. Wendland, C. arenbergiana H. of Ocozocoautla-Cosoleacaque, Ocozocoautla, Perez-Far¬ Wendland, tleliconia sp., and a herbaceous layer rera 1HH6 (CHIP); Montanas del Norte, 2 km N of Colonia comprised of Anthurium huixtlense Matuda, A. clar- Cuactemoc, Municipio de San Fernando, Miranda 6160 (MEXU), 6162 (CHIP). inervium Matuda, A. pentaphyllum (Aublet) G. Don var. bombacifolium (Schott) Madison, and a Cala- Acknowledgments. We thank Francisco Her¬ thea sp. nandez Najarro for help with fieldwork and mea¬ surements, as well as Maria A. Velazquez Martinez, Discussion Jesus De la Cruz Rodriguez, and Oscar Farrera Sar- miento for processing of plants from Instituto de The species is tentatively placed in Anthurium Historia Natural and Escuela de Biologfa de la sect. Calomystrium owing to its persistent intact Universidad de Ciencias y Artes del Estado de cataphylls, subterete petioles, and thick spathe and Chiapas. We also thank Dewey Fisk (Davie, Flori¬ spadix. Mexican species have proven to be unique, da) and Jay Vaninni (Guatemala) for providing de¬ isolated, and distinct from other species in the tails of live plants of both species. same sections in other parts of Central America. Breeding studies should be carried out between A. faustomirandae and A. huixtlense Matuda, a species Literature Cited of unquestioned placement in section Calomys¬ Croat, T. B. 1983. A revision of the genus Anthurium (Ar- trium, to confirm its placement here. The species aceae) of Mexico and Central America. Part I: Mexico was first collected by botanist Faustino Miranda at and Middle America. Ann. Missouri Bot. Card. 70: San Fernando, Chiapas, based on Miranda 6160 21 I -420. Miranda, F. 1952. La Vegetacion de Chiapas. Vol. 1. Go- and 6162 (Miranda, 1952). Miranda determined it bierno del Estado de Chiapas, Tuxtla Gutierrez. as A. xanthosomifolium Matuda (perhaps due to its Rzedowski, J. 1978. La Vegetacion de Mexico. Edit. Li- large leaves), which is now a synonym of A. tita¬ musa. Mexico, 1).F.